National patent is an inaccurate concept and may be misleading. All valid patents are recognized by the state. \r\nChina's patent law stipulates that there are three types of inventions that can be protected by patents: invention patents, utility model patents and design patents, of which invention patents are the most important. \r\nAll patents must be applied to the State Intellectual Property Office. Only after passing the application will there be a patent certificate issued by the State Intellectual Property Office. It can be understood from another perspective. As long as there is a patent certificate from the State Intellectual Property Office, it can be said to have been obtained. National patent certification. There is no distinction between national and regional patents. \r\nFor more information about what national patents look like, enter: /ask/12e8be1615833202.html?zd to view more content